Mercedes W177 Additional Boot Lid Brake Light Stop Light Clear Lens

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W177 Additional Boot Lid Brake Light Stop Light Clear Lens is an original component from the Main and center brake lights group, designed for installation in the rear part of the body. This used lamp is a functional solution for drivers who need a proven, factory-made component that improves the visibility of braking signals and driving safety.

Specifications and technical data

• SKU: A1779067504
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779067504
• Substitutable numbers: A1779067504, A 177 906 75 04, A1779064201, A 177 906 42 01
• Location on the vehicle: Rear
• Category: Centre & Third Brake Light Assemblies

Purpose and function of the third brake light

The third brake light in the Mercedes W177 model operates in the rear zone of the vehicle, supporting the main brake lights. Its task is to clearly signal speed reduction, especially for vehicles following behind, which translates into better readability of signals and a reduction in the risk of rear-end collisions.

The element has been designed as an integral part of the lighting system, maintaining factory optical and electrical parameters. Thanks to this, after installation, the consistency of the entire brake light system is maintained without the need for additional installation modifications.

Construction and body fitment

The third brake light is structurally adapted to the rear body of the Mercedes W177, which ensures proper seating in the intended mounting location. The shape of the housing and the layout of the mounts are consistent with the factory design, which facilitates the replacement of a damaged element and allows for maintaining the aesthetics of the tailgate.

The lamp optics have been prepared for uniform light distribution so that the braking signal is clearly visible in various road conditions. The applied design solutions support stable operation in typical temperature ranges and operational loads.

Benefits of using an original brake light

Using an original third brake light in the Mercedes W177 allows for maintaining consistency with other lighting system components. This is a beneficial solution both in terms of technical and visual aspects, as the component is designed with a specific vehicle model in mind.

• Factory fitment to the rear body without the need for modifications.
• Consistent operation with the main brake lights within a single electrical installation.
• Uniform appearance of the rear zone of the vehicle, in accordance with the manufacturer's design.

The used nature of the element allows for an economical replacement while maintaining the original specification, which is particularly important for post-accident repairs or restoring full lighting functionality.

Mounting zone and technical aspects

The third brake light is intended for installation in the rear part of the vehicle, in a dedicated place provided by the manufacturer. Proper seating in the body ensures the correct lighting angle and proper visibility of the braking signal for other road users.

During installation, it is worth paying attention to the correct connection to the existing electrical harness and the tightness of the connection with the body panel to reduce the risk of moisture entering the lamp interior and the mounting space.

Application in service, repairs, and upgrades

The Mercedes W177 Additional Boot Lid Brake Light Stop Light Clear Lens will work well both for standard replacement of a damaged element and for work related to restoring full lighting system efficiency after a collision. It is a practical solution for workshops, body and paint shops, and individual users who expect a component consistent with the factory specification.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Mercedes and need other elements from the same group, such as additional brake lights, central brake lights, or supplementary signaling modules, check the available parts in the Mercedes main and center brake lights category.

For those interested in a broader approach to retrofitting and modernizing the car using dismantled components, an article describing the practical aspects of retrofitting may be helpful – you can find more information in the material on professional retrofitting and affordable car upgrades using used parts.